hgext/inotify/__init__.py

hgrc.5: fix quoting of literal strings

The quotes would go wrong in many places due to differences between
asciidoc version 8.2.7 used by Benoit and 8.4.5 used by me. Between
those versions asciidoc stopped interpreting the content of `quoted
strings`, and so `*` would start bold text in the old version, but do
nothing in the new version.

To complicate things further, `\*` would escape the bold tag in the
old version, but in the new version the backslash was inserted
literally into the output (because the backtick quotes it).

I've now replaced backticks with non-quoting plusses and escaped
backslashes as appropriate.

# __init__.py - inotify-based status acceleration for Linux
#
# Copyright 2006, 2007, 2008 Bryan O'Sullivan <[e-mail]>
# Copyright 2007, 2008 Brendan Cully <[e-mail]>
#
# This software may be used and distributed according to the terms of the
# GNU General Public License version 2, incorporated herein by reference.

'''inotify-based status acceleration for Linux systems
'''

# todo: socket permissions

from mercurial.i18n import _
from mercurial import cmdutil, util
import server
from weakref import proxy
from client import client, QueryFailed

def serve(ui, repo, **opts):
    '''start an inotify server for this repository'''
    timeout = opts.get('timeout')
    if timeout:
        timeout = float(timeout) * 1e3

    class service(object):
        def init(self):
            try:
                self.master = server.master(ui, repo, timeout)
            except server.AlreadyStartedException, inst:
                raise util.Abort(str(inst))

        def run(self):
            try:
                self.master.run()
            finally:
                self.master.shutdown()

    service = service()
    cmdutil.service(opts, initfn=service.init, runfn=service.run)

def debuginotify(ui, repo, **opts):
    '''debugging information for inotify extension

    Prints the list of directories being watched by the inotify server.
    '''
    cli = client(ui, repo)
    response = cli.debugquery()

    ui.write(_('directories being watched:\n'))
    for path in response:
        ui.write(('  %s/\n') % path)

def reposetup(ui, repo):
    if not hasattr(repo, 'dirstate'):
        return

    # XXX: weakref until hg stops relying on __del__
    repo = proxy(repo)

    class inotifydirstate(repo.dirstate.__class__):

        # We'll set this to false after an unsuccessful attempt so that
        # next calls of status() within the same instance don't try again
        # to start an inotify server if it won't start.
        _inotifyon = True

        def status(self, match, ignored, clean, unknown=True):
            files = match.files()
            if '.' in files:
                files = []
            if self._inotifyon and not ignored:
                cli = client(ui, repo)
                try:
                    result = cli.statusquery(files, match, False,
                                            clean, unknown)
                except QueryFailed, instr:
                    ui.debug(str(instr))
                    # don't retry within the same hg instance
                    inotifydirstate._inotifyon = False
                    pass
                else:
                    if ui.config('inotify', 'debug'):
                        r2 = super(inotifydirstate, self).status(
                            match, False, clean, unknown)
                        for c,a,b in zip('LMARDUIC', result, r2):
                            for f in a:
                                if f not in b:
                                    ui.warn('*** inotify: %s +%s\n' % (c, f))
                            for f in b:
                                if f not in a:
                                    ui.warn('*** inotify: %s -%s\n' % (c, f))
                        result = r2
                    return result
            return super(inotifydirstate, self).status(
                match, ignored, clean, unknown)

    repo.dirstate.__class__ = inotifydirstate

cmdtable = {
    'debuginotify':
        (debuginotify, [], ('hg debuginotify')),
    '^inserve':
        (serve,
         [('d', 'daemon', None, _('run server in background')),
          ('', 'daemon-pipefds', '', _('used internally by daemon mode')),
          ('t', 'idle-timeout', '', _('minutes to sit idle before exiting')),
          ('', 'pid-file', '', _('name of file to write process ID to'))],
         _('hg inserve [OPT]...')),
    }